The transceiver connects to one or two transducers. Initially, only single transducer installation is supported. The transceiver can receive information from a relevant selection of ITI sensors, except the ITI TrawlEye and the ITI Catch.
The transceiver requires an external power supply offering 12 to 15 Vdc, minimum 5 A. A suitable power supply is provided with the delivery. A high quality Ethernet cable connects the transceiver to the computer. The distance between the computer and the transceiver can be extended up to maximum 70 meters. If a longer cable is required, cut it in half, and insert an Ethernet switch to provide buffer amplification.
A TV80 system with PxPos sensors and a TP90 transceiver allows you to measure the range and bearing to each sensor on the trawl. The measurements of range and bearing provide the position of the sensors relative to the vessel, and thus the location of
the trawl. The TP90 transceiver needs heading information to calculate the vessel's true bearing. You must install a gyro to get this measurement. Otherwise you will only get relative bearing and slant range. WGS84 position of the vessel is needed to calculate the position of the PxPos sensors. Install a GPS to get this calculation. When this position is known, you can avoid wrecks and other obstacles on the seabed. This means that a TV80 system fitted with a TP90 transceiver can replace an existing ITI system.
Position information is sent to and from the transceiver via NMEA sentences. For more information, refer to the relevant software release note and the TV80 end-user documentation.
The transceiver supports these gear monitoring sensors:
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PxPos sensor: measurement combinations
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Temperature / Depth (Lid dependant) |
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Temperature / Depth (Lid dependant) + Remote 1 |
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Temperature / Depth (Lid dependant) + Remote 2 |
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